Carton-sealing machine.



H. L. JOHNSON.

CARTON SEALING MACHINE.

APPLICATION min ocT. 5, |914.

1 ,1 86, 1 O2. Patented June 6, 1916.

3 SHEETS-SHEET l.

H. L. JOHNSON.

CARTON SEALING MACHINE.

APPucATIoM FILED oc.5.1914.

1 1 86, 1 O2 Patfnted June 6, 1916.

3 SHEETS-SHEET 2l WITNESSES: /N VE N TOR HWF/w L JOHNSON Br www g? H. L. JOHNSON.

CARTON SEALING MACHINE.

APPLxc/Tlou msn ocT.5.1914.

1 ,1 86,1 O2. Patented Jun@ 6, 1916.

3 SHEETSSHEET 3A WITNESSES: INI/ENTUH UNITED STATES PATENT OFFICE.

HARRY L. JOHNSON, 0F BATTLE CREEK, MICHIGAN, ASSIGNOR TO* JOHNSON AUTO- MATIC SEALER CO., LTD., OF BATTLE CREEK, MICHIGAN.

CARTON-SEALING MACHIN Specification of Letters Patent.

Patented June 6, 1916.

To all 'whom z't may concern Be it known that I, HARRY L. JOHNSON, a citizen of the United States, residing at Battle Creek, Michigan, have invented certain new and useful Improvements in Carton-Sealing Machines, of which the following is a specification.

This invention relates to improvements in carton sealing machines.

My present improvements are especially designed by me for use on carton sealing machines such as are shown in U. S. Letters Patent No. 1,052,667, issued to me February 11, 1913, and I have illustrated my improvements herein as I have embodied the same in such a structure. My improvements are, however, desirable and capable of embodiment in other mechanisms of this class.

The main objects of this invention are to provide in a carton sealing machine an improved means for discharging or ejecting the sealed cartons from the forms and also to provide a mechanism which is simple and durable in structure.

Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow.

I accon'iplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearly illustrated in the accompanying drawing forming a part of this specification, in which:

Figure I is a side view of a carton sealing machine embodying the features of my invention, certain details not lmrticularly relating to my present improvenwnts being omitted. Fig. II is a detail vertical longitudinal section, the conveyer' chain and carton holder being shown in full lines. Fig. III is a detail front perspective showing details of my improved ejector or discharge mechanism. Fig. IV is a detail vertical section showing one of the ejectors and the operating connections therefor. Fig. V is an enlarged detail section on a line corresponding to line 5-5 of Fig. I.

In the drawing similar reference numerals refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

Referring to the drawing, the frame in the structure illustrated comprises suitable side members 1 connected by the bottom cross sills 2. The frame is suitably shaped to support the operating parts. At its rear end the frame has a superstructure 3 which supports parts of the flap folding and gluing mechanism. Disposed centrally and longitudinally of the frame is a conveyer or carrier way comprising a top member 4 and a bottom member 5, the top member being mounted above the frame cross pieces 6, while the bottom member 5 is mounted below it. At the front and rear ends of these carrier ways and disposed centrally between them are sprocket wheels 7 and 8 for the carrier or conveyer chain 9. The frame-like carton holders 10 are mounted at suitable intervals upon this chain 9. The sprocket 8 is mounted on the shaft 11 at the front end of the machine, while the sprocket 7 is mounted on the shaft 12 at the rear end of the machine. The shaft 12 is driven from the driving shaft 13, which is provided with a belt 14, through the sprocket chain 15, the sprockets for the chain 15 not being illustrated as they will be readily understood.

'lhe cartons to be sealed are placedupon the holders 10 at the front end of the machine. The holders are provided with rests or stops 16 for the ends of the cartons.

As the cartons are carried along by the conveyer the inner flaps are folded by the mechanism, designated generally by the numeral 17, which is driven through the sprocket chain 18 from the shaft 12. As the details of the flap folding mechanism form no part of my present invention they are not further described herein, but they are preferabl y those illustrated and described in detail in my patent above referred to. After the inner flaps are folded glue is applied to the side flaps by a gluing mechanism, designated generally by the numeral 19. The gluing mechanism is connected to the driving shaft 13 by theI gears 20. The details of this gluing mechanism are not illustrated or described but suitable mechanism is shown in my aforesaid patent. At the rear of the gluing mechanism is a curved flap retainer 21 which holds the inner flaps in their folded position as the cartons are carried by the holders over the rear conveyer sprocket to the side flap folding mechanism below` designated generally by the luuncral 'JL'. 'lhc details of this mechanism are not shown as they form no part of my present invention aud suitable mechanism is shown and described in my aforesaid patent.

AS the sealed cartons pass from the sealing mechanism 2:2 they are engaged by the retaining rollers 23, which are colmected by a train of gears so as to be driven in proper direction. These rollers are connected to the. shaft E25 by theI sprocket chain 26 and suitable sprocket wheels. not shown.

To discharge the sealed cartons from the forms I provide a pair of ejectors 27 which are mounted to reciprocate in the supports Q8 so that the conveyer holders successively pass between them as they are carried along by the conveyer. 'lhese ejectors or push bars are provided with plate-like heads 29 having grooves 3() at their inner ends adapted to receive die edges of the cartons. The ejectors or push bars S27 are actuated by arms 3l ou the rock shafts 32 disposed at the sides of the path of the conveyer forms. The supports Qtfor the push bars or ejectors 7 are provided with bea rings 33 on the shaft 11. This allows for the oscillating movements of the arms ill which are pivotally connected at IH to the push bars and also permits the oscillation of the ejectors so that they travel or swing with the carton holders on their work strokes as the. holders pass over the conveyer lsprocket wheel 8.

The holders swing between the ejectorswhile the ejectors are in their retracted position. The bases of the holders are somewhat narrower than their sides so that the heads Q9 swing under the edges of the cartous. To allow the holders to swing from between the ejectors after the cartons are discharged the sides of the holders are notched at 10.

The rock shafts 12 are provided with arms 35 which are connected b v the links 3G to arms 37 on the actuating shaft 3S. rIhis actuating shaft is provided with an arm 39 connected by the link 40 to a lever 41 pivoted at l2 and actuated by the cam 43 on the conveyer driving shaft l2. This driving connection of the ejector mechanism to the conveyer shaft 1Q insures proper timing of the ejector mechanism with the conveyer.

My improved ejector mechanism delivers or discharges the lsealed cartons at the front of the machine and in a manner that does not distort or injure them.

I have illustrated and described my improvements in the` form in which I have embodied the same in practice. I have not attempted to illustrate or describe various modifications or adaptations which I contemplate as I believe the disclosure-made will enable those skilled in the art to which my invention relates to embody or adapt the same as conditions may require. I desire, however, to be understood as claiming my improvements specifically in the form illustrated as well as broadly Within the scope of the appended claims.

llaving thus described my invention, what I claim as new and desire to secure by Letters Patent. is:

1. In a structure of the class described, the combination with a conveyer comprising driving and driven conveyer shafts, sprocket wheels on said shafts, and a conveyer chain provided with carton holders, of a pair of reciprocating ejector bars disposed one at each side. of the conveyer so that the holders pass between them as the holders pass over said sprocket on said driven shaft, supports` for said ejector bars having rocking bearings on said driven shaft, a pair of rock shafts disposed one at each side of the path of the conveyer holders,

arms on said rock shafts pivotally connected to said ejector bars, an actuating shaft having arms thereon, arms on said rock shafts, links connecting said arms on said actuating shaft to said arms on said rock shafts, an actuatingr arm on said actuating shaft, a cam on said driving shaft, a lever actuated by said cam, and a link connecting said actuating arm on said actuating shaft to said lever.

Q. In a structure of the class described, the. combination with a conveyer comprising driving and driven conveyer shafts, sprocket wheels on said shafts, and a conveyer chain provided with carton holders, of a pair of reciprocating ejector bars disposed one at each side of the conveyer so that the holders pass between them as the holders pass over said sprocket on said driven shaft, supports for said ejector bars having rocking bearings on said driven shaft, a pair of rock shafts disposed one at each side of the path of the conveyer' holders, arms on said rock shafts pivotally connected to said ejector bars, and driving connections from said rock shafts to said driving shaft.

3. In a structure of the class described, the combination of a conveyer chain provided with carton holders, a shaft, a conveyer sprocket on said shaft, reciprocating ejectors` disposed so that the holders pass between them as the holders pass over Said sprocket, 'upports for said ejector bars having rocking bearings on said shaft, rock shafts, arms on said rock shafts pivotally connected to said ejector bars, an actuating shaft having arms thereon, arms on said rock shafts, links connecting said arms on said actuating shaft to said arms on said rock shafts, and driving connections from said conveyer to said actuating shaft.

4. In a structure of the class described, the combination of a conveyer chain provided with carton holders, a shaft, a conveyer sprocket on said shaft, reciprocating ejectors disposed so that the holders pass between them as the holders pass over said sprocket, supports for said ejector bars having rocking bearings on said shaft, rock shafts, arms on said rock shafts pivotally connected to said ejector bars, and means for actuating said rock shafts timed to actuate said ejectors as the holders pass between them.

5. In a structure of the class described, the combination of a conveyer chain provided with carton holders, a shaft, a conveyer sprocket on said shaft, reciprocating ejectors disposed so that the holders pass between them as the holders pass over said sprocket, supports for said ejectors having rocking bearings on said shaftl and means for reciprocating said ejectors and rocking their said supports as the holders pass the same.

6. In a structure of the class described, the combination of a conveyer chain provided with carton holders, a shaft, a conveyer sprocket on said shaft, a reciprocating ejector, a support for said ejector having rocking bearing on said shaft, and means for reciprocating said ejector and oscillating its said support.

7. In a structure of the class described, the combination of a conveyer chain provided with carton holders, a shaft, a conveyer sprocket on said shaft, a reciprocating ejector, said ejector having a head with a groove therein adapted to engage the edges of the cartons, a support for said ejector having rocking bearing on said shaft, and means for reciprocating said ejector and oscillating its said support.

8. In a 'structure of the class described, the combination of a conveyer provided with carton holders, a wheel around which said conveyer travels, a reciprocating ejector, a support therefor mounted for oscillation about the axis of said wheel, and means for actuating said ejector and oscillating its said support timed so that the ejector is actuated as the carton holders pass over` said wheel.

9. In a structure of the class described, the combination of a conveyer provided with carton holders, a shaft, a conveyer sprocket on said shaft, a reciprocating ejector, a support for said ejector mounted on said shaft, a rock shaft, an arm on said rock shaft pivotally connected to said ejector, and driving connections from said conveyer to said rock shaft.

10. In a structure of the class described, the combination of a conveyer provided with carton holders, reciprocating ejectors disposed so that the carton holders pass between them, said ejectors having inwardly projecting heads, the sides of the holders being wider than their bases so that the inner edges of the heads travel within the planes of the holder sides on their ejecting stroke, the sides of the holders being notched to permit the holders to swing from between the ejectors while the ejectors are in their outer positions.

11. In a structure of the class described, the combination of a conveyer provided with carton holders, reciprocating ejectors disposed so that the carton holders pass between them, said ejectors having inwardly projecting heads which travel within the planes of the holder sides on their ejecting stroke, the sides of the holders being notched to permit the holders to swing from between the ejectors while the ejectors are in their outer positions.

12. In a structure of the class described, the combination of a conveyer chain provided with carton holders, a shaft, a conveyer sprocket on said shaft, an ejector arm support having rocking bearing on said shaft, a rock shaft, an ejector actuating arm on said rock shaft, an ejector pivotally connected to said arm and mounted on said support, and driving connections from said conveyer to said rock shaft whereby the ejector is actuated to eject cartons from the carton holders as the same pass over said sprocket wheel.

In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

CARL H. PATTERSON, H. G. BAYLEY. 

